Application of siphon bucket in rotational flow well lift pump of turbid circulating water system
The turbid circulating water system has rotational flow well and flat flow tank two forms in Xua⁃nhua Iron and Steel Company, both of which are designed with lift pumps. Among, the continuous casting turbid circulating water system of the 120 tons converter combined pump station adopt the form of rota⁃tional flow well, the original design adopted an unsealed automatic control self-priming pump as the lift pump, but the self-priming pump takes a long time to start pump each time, and it is very difficult to start the pump, later changed to horizontal centrifugal pump supporting a vacuum pump for exhaust and water diversion, but the starting effect of the pump is also poor. Based on the structural characteristics of the ro⁃tational flow well, this paper analyzes the reasons why it is difficult to start the lift pump, and puts forward measures to solve the difficulty in starting rotational flow well lift pump according to the siphon principle . Through setting siphon bucket on the water absorption system of the lift pump, the difficult problems in starting the rotational flow well lift pump is completely solved, and that the siphon bucket does not need electric drive, also does not have precision electrical components and mechanical equipment, so it has strong adaptability to the on-site environment.
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